数学相关

Math online step by step calculators and solvers for problems including polynomial equations, rational expressions, systems of equations, matrices, complex numbers, and analytic geometry.

Cool Math has free online cool math lessons, cool math games and fun math activities. Really clear math lessons (pre-algebra, algebra, precalculus), cool math games, online graphing calculators, geometry art, fractals, polyhedra, parents and teachers areas too.

Here you will find a suite of dynamic Javascript "Mathlets" for use in learning about differential equations and other mathematical subjects, along with examples of how to use them in homework, group work, or lecture demonstration, and some of the underlying theory. There are also voice-over animated demos. We welcome your contributions; just contact us

An encyclopedic collection of math resources for all grades. Arithmetic games, problems, puzzles, and articles

IXL offers online maths practice covering preschool through year 12 maths and everything in between. Students will enjoy learning with IXL's fun and interactive questions, including graphing, drag-and-drop, select-and-edit and more.

Collection of math exercises and math problems. Primary school, high school and college math problems and math exercises with correct answers.

On-Line Study Mathematical Resources for High School Students. NY Next Generation Standards and more, JrMath, Algebra 1, Geoemtry, Algebra 2, other levels to follow.

Welcome to my math notes site. Contained in this site are the notes (free and downloadable) that I use to teach Algebra, Calculus (I, II and III) as well as Differential Equations at Lamar University. The notes contain the usual topics that are taught in those courses as well as a few extra topics that I decided to include just because I wanted to. There are also a set of practice problems, with full solutions, to all of the classes except Differential Equations. In addition there is also a selection of cheat sheets available for download.

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Find helpful math lessons, games, calculators, and more. Get math help in algebra, geometry, trig, calculus, or something else. Plus sports, money, and weather math lessons, too.

Fourier transforms are a tool used in a whole bunch of different things. This is a explanation of what a Fourier transform does, and some different ways it can be useful.

Puzzles from Quant Interviews

A website dedicated to the fascinating world of mathematics and programming

📚 Introduction to Modern Statistics - A college-level open-source textbook with a modern approach highlighting multivariable relationships and simulation-based inference. For v1, see https://openin...

Free tutorials cover AP statistics, probability, survey sampling, regression, ANOVA, and matrix algebra. Written and video lessons. Online calculators.

Mathwords home page

Explanatory solutions, answers and hints for your math textbook exercises. Try our own eCourses developed with care to maximize your grades start using it today for free!

The future of online learning

Discover Mathigon, the Mathematical Playground. Learning mathematics has never been so interactive and fun!